AirFit Exercise Bike Built to push the limits of performance.The SMAI AirFit Exercise Bike is engineered to challenge even the toughest athletes. With a heavy-duty hexagonal steel frame and reinforced handlebars, it delivers the strength and stability needed for high-intensity training. Designed to engage both your upper and lower body, the AirFit combines arm and leg movements for a total workout that drives results. Specially engineered fan blades ramp up resistance the harder you push, giving